25 US Roads with the Highest Yearly Traffic

Can you guess the 25 roads in the United States that had the highest yearly traffic flow in 2021?

AADT = Annual Average Daily Traffic

Data from US Dept. of Transportation

Make sure to include road prefix (I_, US_, CA_)

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Last updated: March 9, 2026

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First submitted	March 9, 2026
Times taken	12
Average score	60.0%
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State	Answer	AADT
California	I-5, Los Angeles	504,000
Georgia	I-75, Atlanta	419,516
California	I-5, Mission Viejo	415,000
California	I-405, Los Angeles	383,500
Texas	I-10, Houston	313,693
Texas	I-10, Houston	312,068
Texas	I-10, Houston	273,454
California	I-210, Los Angeles	358,000
California	I-10, Los Angeles	355,000
California	CA-60, Los Angeles	350,000
Florida	I-95, Miami	339,500
Nevada	I-15, Las Vegas	332,000
Illinois	I-90, Chicago	321,700
Texas	I-10, Houston	320,892
California	CA-91, Los Angeles	319,000
Arizona	I-10, Phoenix	318,542
California	US-101, Los Angeles	318,000
Texas	I-69, Houston	316,892
California	I-110, Los Angeles	315,000
Utah	I-15, Salt Lake City	314,330
California	I-5, San Diego	312,000
Florida	FL-826, Miami	311,500
California	CA-57, Los Angeles	308,800
Georgia	I-85, Atlanta	306,304
California	I-605, Los Angeles	303,000

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